What browser are you using. It seems to work in Firefox, or at least I am not seeing any errors.
Dan > > Hi all, > I'm using GeoExt to create a tree node structure for my layers, and I'm > using the following heatmap script: > http://www.websitedev.de/temp/openlayers-heatmap-layer.htmlThe heatmap > functionality breaks in my application when I add this script > /ext-3.4.0/adapter/ext/ext-base-debug.js", without making any other > changes to my code. > > It seems that the points are displaying correctly, is just the colour that > is not showing properly. Instead of showing the colours, everything is > displayed in black with the correct intensity.This is the error that I'm > getting: > Uncaught TypeError: Cannot read property 'x' of null > OpenLayers.js:516OpenLayers.Map.OpenLayers.Class.getPixelFromLonLatOpenLayers.js:516OpenLayers.Map.OpenLayers.Class.getLayerPxFromLonLatOpenLayers.js:519Heatmap.Layer.OpenLayers.Class.moveToHeatmap.js:252OpenLayers.Map.OpenLayers.Class.moveToOpenLayers.js:498OpenLayers.Map.OpenLayers.Class.setCenterOpenLayers.js:473OpenLayers.Map.OpenLayers.Class.updateSizeOpenLayers.js:464(anonymous > function) > > The line in the heatmap.js that is pointed in the error list does this > var pos = this.map.getLayerPxFromLonLat(src.lonlat);var x = pos.x - rad + > offsetX;var y = pos.y - rad + offsetY; > > Any idea of what is causing this problem? > Thanks in advance, > Julia > > > _______________________________________________ > Users mailing list > [email protected] > http://www.geoext.org/cgi-bin/mailman/listinfo/users > _______________________________________________ Users mailing list [email protected] http://www.geoext.org/cgi-bin/mailman/listinfo/users
